text: // Tests for -fprofile-generate and -fprofile-use flag compatibility. These two
  // flags behave similarly to their GCC counterparts:
  //
  // -fprofile-generate         Generates the profile file ./default.profraw
  // -fprofile-generate=<dir>   Generates the profile file <dir>/default.profraw
  // -fprofile-use              Uses the profile file ./default.profdata
  // -fprofile-use=<dir>        Uses the profile file <dir>/default.profdata
  // -fprofile-use=<dir>/file   Uses the profile file <dir>/file
  
  // On AIX, -flto is required with -fprofile-generate. gcc-flag-compatibility-aix.c is used to do the testing on AIX with -flto
  // XFAIL: aix
  // RUN: %clang %s -c -S -o - -emit-llvm -fprofile-generate | FileCheck -check-prefix=PROFILE-GEN %s
  // PROFILE-GEN: @__profc_main = {{(private|internal)}} global [2 x i64] zeroinitializer, section
  // PROFILE-GEN: @__profd_main =
  
  // Check that -fprofile-generate=/path/to generates /path/to/default.profraw
  // RxUN: %clang %s -c -S -o - -emit-llvm -fprofile-generate=/path/to | FileCheck -check-prefixes=PROFILE-GEN,PROFILE-GEN-EQ %s
  // PROFILE-GEN-EQ: constant [{{.*}} x i8] c"/path/to{{/|\\\\}}{{.*}}\00"
  
  // Check that -fprofile-use=some/path reads some/path/default.profdata
  // This uses Clang FE format profile.
  // RUN: rm -rf %t.dir
  // RUN: mkdir -p %t.dir/some/path
  // RUN: llvm-profdata merge %S/Inputs/gcc-flag-compatibility.proftext -o %t.dir/some/path/default.profdata
  // RUN: %clang %s -o - -Xclang -disable-llvm-passes -emit-llvm -S -fprofile-use=%t.dir/some/path | FileCheck -check-prefix=PROFILE-USE %s
  
  // Check that -fprofile-use=some/path/file.prof reads some/path/file.prof
  // This uses Clang FE format profile.
  // RUN: rm -rf %t.dir
  // RUN: mkdir -p %t.dir/some/path
  // RUN: llvm-profdata merge %S/Inputs/gcc-flag-compatibility.proftext -o %t.dir/some/path/file.prof
  // RUN: %clang %s -o - -Xclang -disable-llvm-passes -emit-llvm -S -fprofile-use=%t.dir/some/path/file.prof | FileCheck -check-prefix=PROFILE-USE %s
  // PROFILE-USE: = !{!"branch_weights", i32 101, i32 2}
  
  // Check that -fprofile-use=some/path reads some/path/default.profdata
  // This uses LLVM IR format profile.
  // RUN: rm -rf %t.dir
  // RUN: mkdir -p %t.dir/some/path
  // RUN: llvm-profdata merge %S/Inputs/gcc-flag-compatibility_IR.proftext -o %t.dir/some/path/default.profdata
  // RUN: %clang %s -o - -emit-llvm -S -fprofile-use=%t.dir/some/path | FileCheck -check-prefix=PROFILE-USE-IR %s
  
  // Check that -fprofile-use=some/path/file.prof reads some/path/file.prof
  // This uses LLVM IR format profile.
  // RUN: rm -rf %t.dir
  // RUN: mkdir -p %t.dir/some/path
  // RUN: llvm-profdata merge %S/Inputs/gcc-flag-compatibility_IR.proftext -o %t.dir/some/path/file.prof
  // RUN: %clang %s -o - -emit-llvm -S -fprofile-use=%t.dir/some/path/file.prof | FileCheck -check-prefix=PROFILE-USE-IR %s
  //
  // RUN: llvm-profdata merge %S/Inputs/gcc-flag-compatibility_IR_entry.proftext -o %t.dir/some/path/file.prof
  // RUN: %clang %s -o - -emit-llvm -S -fprofile-use=%t.dir/some/path/file.prof | FileCheck -check-prefix=PROFILE-USE-IR %s
  
  // PROFILE-USE-IR: = !{!"branch_weights", i32 100, i32 1}
  
  int X = 0;
  
  int main() {
    int i;
    for (i = 0; i < 100; i++)
      X += i;
    return 0;
  }
  